/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

import Beans.LoggedInBean;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.sql.*;

/**
 *
 * @author sa11
 */
public class ProcessComment extends HttpServlet {
    private String connURL = "jdbc:sqlserver://idasql-db.hb.se:56001;" + "databaseName=dbtht1117";///dbtht1117"; // ange databas namn här";
    private String userName = "dbtht1117";
    private String password = "panwer09";
    
    private int bloggID = 0;
    private String kommentarsText = "";
    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        bloggID = Integer.parseInt(request.getParameter("bloggID"));
        kommentarsText = request.getParameter("kommentar");
        // get the username and stuff that makes sure the user is logged in here
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            /* TODO output your page here */
            
            initiateSQL(out);
            response.sendRedirect("BloggInlagg?bloggID=" + bloggID);
            /*
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet ProcessComment</title>");  
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet ProcessComment at " + request.getContextPath () + "</h1>");
            initiateSQL(out);
            /*
            out.println("</body>");
            out.println("</html>");
             /**/
        } finally {            
            out.close();
        }
    }
    
    private void initiateSQL(PrintWriter out){
        // driver and connection try catch
        Connection conn = null;
        Statement stmt = null;
        int kommentarsID = 1;
        LoggedInBean lib = LoggedInBean.getInstance();
        try {
            out.println("<p>hej</p>");
            Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
            out.println("<p>hej</p>");
            conn = DriverManager.getConnection(connURL, userName, password);
            out.println("<p>hej</p>");
            stmt = conn.createStatement();
            
            /*
            // test
            DatabaseMetaData md = conn.getMetaData();
            ResultSet rs = md.getTables(null, null, "%", null);
            out.println("<p>");
            while (rs.next()) {
                out.println(rs.getString(3));
            }
            out.println("</p>");
            stmt.executeUpdate("USE dbtht1117;");
            /**/
            
            // preconditions: man har kollat att användaren är giltig m.m.
            
            ResultSet rs = stmt.executeQuery("SELECT kommentarsID FROM Kommentar ORDER BY kommentarsID DESC;");
            if(rs.next()){
                kommentarsID = Integer.parseInt(rs.getString(1))+1;
                out.println("<p>ger kommentars id" + kommentarsID + "<br />");
            }
            out.println("<p>förbi select kommentarsID</p>");
            
            stmt.executeUpdate("INSERT INTO Kommentar VALUES(" + kommentarsID + ", " + bloggID + ", '" + lib.getusername() +  "', GetDate(), '" + kommentarsText + "');");
            
            
            out.println("<p>komment entered</p>");
            /**/
        } catch (ClassNotFoundException ex) {
            out.println("error at driver");
        } catch(java.sql.SQLException ex){
            out.println("error at initiateSQL");
        }
        finally{
            out.println("</body>");
            out.println("</html>");
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        (response.getWriter()).println("<html><head><title>not reachable</title></head><body><p style = \"font-size: 15pt; font-color: red;\">not reachable</p></body></html>");
        // processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
